Battery pack



FIG. 1 is a front perspective view of a battery pack according to our design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a front perspective view of the battery pack with a sub battery pack shown in broken lines. The sub battery pack is environmental only and forms no part of the claimed design.

The broken lines in the drawings illustrate environmental subject matter only and form no part of the claimed design. 

CLAIM The ornamental design for a battery pack, as shown and described. 